1.广东省科学院测试分析研究所(中国广州分析测试中心),广东省化学测量与应急检测技术重点实验室, 广东省中药质量安全工程技术研究中心,广东 广州 510070
2.广东省药品检验所,国家药品 监督管理局化妆品风险评估重点实验室,广东 广州 510070
李杨杰,副主任药师,研究方向:化妆品检验检测和质量标准研究,E-mail:673510709@qq.com
罗辉泰,副研究员,研究方向:色谱-质谱分析技术,E-mail:luohuitai@qq.com
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梁梓洋,张秋炎,周熙等.超高效液相色谱-串联质谱法测定化妆品中全氟及多氟化合物[J].分析测试学报,2023,42(11):1413-1423.
LIANG Zi-yang,ZHANG Qiu-yan,ZHOU Xi,et al.Determination of Perfluorinated and Polyfluoroalkyl Substances in Cosmetics by Ultra High Performance Liquid Chromatography- Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2023,42(11):1413-1423.
梁梓洋,张秋炎,周熙等.超高效液相色谱-串联质谱法测定化妆品中全氟及多氟化合物[J].分析测试学报,2023,42(11):1413-1423. DOI: 10.19969/j.fxcsxb.23080803.
LIANG Zi-yang,ZHANG Qiu-yan,ZHOU Xi,et al.Determination of Perfluorinated and Polyfluoroalkyl Substances in Cosmetics by Ultra High Performance Liquid Chromatography- Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2023,42(11):1413-1423. DOI: 10.19969/j.fxcsxb.23080803.
该文基于超高效液相色谱-串联质谱法(UHPLC-MS/MS),建立了多种类型化妆品中全氟及多氟化合物(PFASs)的分析方法。水剂、膏霜、乳液、凝胶和粉剂样品经过饱和乙酸铵-氯化钠溶液(含1%甲酸)分散后采用1%甲酸-乙腈溶液提取,油状和蜡基类化妆品经过正己烷分散后采用饱和乙酸铵-乙腈溶液(含0.001%氨水)提取,提取液以Agilent RRHD Eclipse Plus Zorbax C,18,色谱柱(3.0 mm×100 mm,1.8 μm)进行分离,在电喷雾离子源(ESI)下以多反应监测(MRM)模式检测,基质匹配外标法定量。通过考察不同前处理方式对30种PFASs回收率的影响,确定最优前处理方法。在优化条件下,30种PFASs在1~250 μg/L 范围内呈良好线性关系,相关系数(,r,2,)为0.990 3~0.999 8;方法检出限为0.025~0.125 μg/g,定量下限为0.050~0.250 μg/g,30种PFASs的平均回收率为70.8%~112%,相对标准偏差(RSD,,n,=6)为0.50%~12%,24 h内各基质溶液中30种PFASs的峰面积相对标准偏差(RSD)均小于10%。采用该方法对采集的88个化妆品样品进行检测,发现1个阳性样品,检出全氟辛酸(PFOA)和全氟辛基磺酸(PFOS)含量分别为4.7 μg/g和1.4 μg/g。该方法简便、快速、准确、灵敏,可为化妆品的质量控制和日常监管提供技术支撑。
In this study,a method for the analysis of perfluorinated and polyfluorinated substances(PFASs) in various types of cosmetics was established based on ultra high performance liquid chromatography and tandem mass spectrometry(UHPLC-MS/MS). Lotion,cream,emulsion,gel and powder cosmetics were dispersed by saturated ammonium acetate-sodium chloride solution(containing 1% formic acid) and extracted by 1% formic acid-acetonitrile solution. Oil and wax-based cosmetics were dispersed by ,n,-hexane and extracted by saturated ammonium acetate-acetonitrile solution(containing 0.001% ammonium hydroxide). The extracts were separated on an Agilent RRHD Eclipse Plus Zorbax C,18, column(3.0 mm×100 mm,1.8 μm),analyzed by electrospray ionization source(ESI) under multiple reaction monitoring(MRM) mode and quantified by the matrix-matched calibration. The optimal pretreatment method was confirmed by investigating the recoveries of 30 PFASs under different pretreatment conditions. The method showed a good linear relationship for 30 PFASs in the concentration range of 1-250 μg/L,and the correlation coefficients(,r,2,) were 0.990 3-0.999 8. The limit of detection(LOD) and quantitation(LOQ) were 0.025-0.125 μg/g and 0.050-0.250 μg/g,respectively. The average recoveries of 30 PFASs ranged from 70.8% to 112%,with relative standard deviations(RSDs,,n,=6) of 0.50%-12%. The RSDs of the peak area of 30 PFASs in each matrix solution within 24 h were less than 10%. This method was applied to the detection of 88 cosmetics samples,and one positive sample was found,whose PFOA and PFOS contents were 4.7 μg/g and 1.4 μg/g,respectively. The method showed simplicity,rapidity,good accuracy and high sensitivity,which could provide technical support for the quality control and daily supervision of cosmetics.
超高效液相色谱-串联质谱(UHPLC-MS/MS)液液萃取化妆品全氟及多氟化合物(PFASs)全氟化合物
ultra high performance liquid chromatography-tandem mass spectrometry(UHPLC-MS/MS)liquid-liquid extraction(LLE)cosmeticsperfluorinated and polyfluorinated substances(PFASs)perfluorinated compound
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